Contrast rivalry paradigm reveals suppression of monocular input in keratoconus

BL Marella, ML Conway, C Suttle… - … & Visual Science, 2021 - iovs.arvojournals.org
Purpose: Keratoconus results in image quality loss in one or both eyes due to increased
corneal distortion. This study quantified the depth of monocular suppression in keratoconus …

Interocular Contrast Balancing Partially Improves Stereoacuity in Keratoconus

BL Marella, PK Vaddavalli, JC Reddy… - Optometry and Vision …, 2023 - journals.lww.com
PURPOSE Interocular differences in image quality, characterized by dissimilar contrast loss
and phase shifts, are implicated in stereoacuity loss in keratoconus. This study determined …

Contrast sensitivity and higher-order aberrations in keratoconus subjects

E Shneor, DP Piñero, R Doron - Scientific Reports, 2021 - nature.com
This study analyzes the relationship between contrast-sensitivity and higher-order
aberrations (HOA) in mild and subclinical-keratoconus in subjects with good visual-acuity …

[HTML][HTML] Suprathreshold contrast perception of resolvable high spatial frequencies remain intact in keratoconus

P Kumar, PK Vaddavalli, P Campbell, CC Hull… - Vision Research, 2023 - Elsevier
Contrast detection thresholds are elevated with optical quality loss in keratoconus. This
study hypothesized that suprathreshold contrast perception is also impaired in keratoconus …

[HTML][HTML] Longitudinal changes in visual acuity in keratoconus

LJ Davis, KB Schechtman, BS Wilson… - … & visual science, 2006 - arvojournals.org
purpose. The present investigation aimed to identify factors that predict reduced visual acuity
in keratoconus from a prospective, longitudinal study. methods. This report from the …

Structure-Function Relationship in Keratoconus: Spatial and Depth Vision

P Kumar, P Campbell, PK Vaddavalli… - … Vision Science & …, 2023 - tvst.arvojournals.org
Purpose: The purpose of this study was to determine changes in spatial and depth vision
with increasing severity of keratoconus and to model the structure-function relationship to …

[HTML][HTML] Binocular cross-correlation analyses of the effects of high-order aberrations on the stereoacuity of eyes with keratoconus

S Metlapally, SR Bharadwaj, A Roorda… - Journal of …, 2019 - tvst.arvojournals.org
Stereoacuity losses are induced by increased magnitudes and interocular differences in
high-order aberrations (HOAs). This study used keratoconus as a model to investigate the …

[HTML][HTML] Neural compensation for long-term asymmetric optical blur to improve visual performance in keratoconic eyes

R Sabesan, G Yoon - Investigative ophthalmology & visual science, 2010 - arvojournals.org
Purpose.: To investigate whether long-term visual experience with irregular optical blur
compensates for the impact of higher-order aberration on visual performance in keratoconic …

Keratoconus stage impact on visual acuity and contrast sensitivity

S Liduma, A Luguzis, G Krumina - Medical Imaging 2020 …, 2020 - spiedigitallibrary.org
Contrast sensitivity decreases in keratoconus subjects even before the decrease is
presented at high contrast visual acuity. The aim of our study was to estimate the subject's …

Forward light scatter and contrast sensitivity in keratoconic patients

A Jinabhai, C O'donnell, H Radhakrishnan… - Contact Lens and …, 2012 - Elsevier
PURPOSE: The aim of this study was to obtain intraocular forward light scatter (FLS) data in
keratoconus patients and to explore possible relationships with contrast sensitivity …